{"id":1052,"date":"2022-12-20T16:46:03","date_gmt":"2022-12-20T15:46:03","guid":{"rendered":"https:\/\/scispx.com\/instruments\/edge\/"},"modified":"2026-10-12T08:59:51","modified_gmt":"2026-10-12T06:59:51","slug":"edge-automated-extraction-solvent-system","status":"publish","type":"instruments","link":"https:\/\/scispx.com\/fr\/instruments\/edge\/","title":{"rendered":"Edge"},"content":{"rendered":"<h2>Syst\u00e8me automatis\u00e9 d'extraction de solvants<\/h2>\n<p class=\"isSelectedEnd\">L'EDGE est un syst\u00e8me automatis\u00e9 d'extraction par solvant qui <strong>simplifie la pr\u00e9paration des \u00e9chantillons tout en r\u00e9duisant le temps d'extraction.<\/strong> Le syst\u00e8me est <strong>plus rapide que l'extraction par Soxhlet<\/strong>, plus automatis\u00e9e que la m\u00e9thode QuEChERS et plus simple que les syst\u00e8mes d'extraction par solvant classiques. Elle r\u00e9pond aux exigences de la m\u00e9thode 3545A de l'EPA am\u00e9ricaine et permet de traiter un large \u00e9ventail de types et de tailles d'\u00e9chantillons.<\/p>\n<p class=\"isSelectedEnd\">Gr\u00e2ce \u00e0 l'automatisation des \u00e9tapes d'extraction, de filtrage, de refroidissement et de lavage au sein d'un m\u00eame flux de travail, l'EDGE effectue les extractions au moins trois fois plus rapidement que les autres syst\u00e8mes d'extraction par fluide sous pression.<\/p>\n<p>Un site d\u00e9di\u00e9 <a href=\"https:\/\/scispx.com\/fr\/instruments\/edge-pfas\/\" target=\"_blank\" rel=\"noopener\">EDGE PFAS<\/a> Une configuration est \u00e9galement disponible pour la pr\u00e9paration d'\u00e9chantillons de PFAS.<\/p>\n<h3><\/h3>\n<h3><strong>Processus d'extraction automatis\u00e9 et simple<\/strong><\/h3>\n<p><strong>1. Chargement des \u00e9chantillons<br \/>\n<\/strong>Une fois qu'un rack de Q-Cups contenant les \u00e9chantillons est charg\u00e9 dans l'EDGE, il suffit de s\u00e9lectionner la m\u00e9thode appropri\u00e9e, de programmer le nombre d'\u00e9chantillons et d'appuyer sur \u00ab D\u00e9marrer \u00bb.<\/p>\n<p><strong>2. Chargement des \u00e9chantillons\u00a0<\/strong><br \/>\nLe syst\u00e8me automatique ins\u00e8re le Q-Cup dans la chambre. Ensuite, le capuchon de pression cr\u00e9e un joint herm\u00e9tique sur le dessus du Q-Cup.<\/p>\n<p><strong>3. Ajout de la matrice<\/strong><br \/>\nTout d'abord, du solvant est introduit par le fond afin de combler l'espace entre la chambre et le Q-Cup, ce qui favorise le transfert thermique. Ensuite, on ajoute du solvant par le haut du Q-Cup pour mouiller l'\u00e9chantillon. \u00c0 mesure que les parois de la chambre se r\u00e9chauffent, la pression dans l'espace de solvant augmente, d\u00e9passant la pression \u00e0 l'int\u00e9rieur du Q-Cup, ce qui force le solvant \u00e0 se disperser dans l'\u00e9chantillon.<\/p>\n<p><strong>4. R\u00e9cup\u00e9ration de l'extrait<\/strong><br \/>\nUne fois que l'\u00e9chantillon a atteint sa temp\u00e9rature, le solvant traverse le Q-Disc, passe par la bobine de refroidissement, puis s\u2019\u00e9coule dans un flacon de collecte.<\/p>\n<h3><strong>Technologie des porte-\u00e9chantillons Q-Cup\u00a0<\/strong><\/h3>\n<p class=\"isSelectedEnd\">L'EDGE utilise le porte-\u00e9chantillon brevet\u00e9 Q-Cup, qui se compose de trois \u00e9l\u00e9ments :<\/p>\n<ul data-spread=\"false\">\n<li>Cylindre Q-Cup<\/li>\n<li>Q-Disc<\/li>\n<li>Fond filet\u00e9<\/li>\n<\/ul>\n<p>La conception \u00e0 partie sup\u00e9rieure ouverte cr\u00e9e un effet de dispersion qui favorise une extraction et une filtration rapides. Les Q-Discs jetables filtrent l'extrait avant l'analyse, ce qui \u00e9vite de recourir \u00e0 une \u00e9tape de filtration suppl\u00e9mentaire. La conception simple permet \u00e9galement d'assembler et de nettoyer facilement les porte-\u00e9chantillons.<\/p>\n<h3><strong>Techniques d'extraction flexibles<\/strong><\/h3>\n<p class=\"isSelectedEnd\">L'EDGE prend en charge plusieurs techniques d'extraction au sein d'un m\u00eame instrument :<\/p>\n<ul data-spread=\"false\">\n<li>Extraction en phase solide dispersive (dSPE)<\/li>\n<li>Extraction par fluide sous pression (PFE)<\/li>\n<li>Extraction liquide assist\u00e9e (SLE)<\/li>\n<\/ul>\n<p>Gr\u00e2ce \u00e0 la technologie Q-Cup, le syst\u00e8me permet d'obtenir un extrait exempt de particules, quelle que soit la technique d'extraction utilis\u00e9e, ce qui r\u00e9duit le recours \u00e0 des syst\u00e8mes d'extraction distincts pour diff\u00e9rentes applications.<\/p>\n<h3><strong>Encombrement r\u00e9duit en laboratoire<\/strong><\/h3>\n<p class=\"isSelectedEnd\">L'EDGE pr\u00e9sente un design compact, avec une largeur de seulement 14,25 pouces, soit environ celle d'une balance analytique. Son faible encombrement permet d'installer plusieurs syst\u00e8mes c\u00f4te \u00e0 c\u00f4te sur une paillasse de laboratoire lorsqu'un d\u00e9bit suppl\u00e9mentaire est n\u00e9cessaire.<\/p>\n<h3><strong>Applications<\/strong><\/h3>\n<p class=\"isSelectedEnd\">La technologie brevet\u00e9e Q-Cup permet l'extraction par solvant pour un large \u00e9ventail d'applications, notamment :<\/p>\n<ul data-spread=\"false\">\n<li>Analyse environnementale<\/li>\n<li>Analyse alimentaire<\/li>\n<li>Analyses du cannabis<\/li>\n<li>Analyse pharmaceutique<\/li>\n<li>Produits de consommation<\/li>\n<li>Analyse des polym\u00e8res<\/li>\n<\/ul>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is automated solvent extraction?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Automated solvent extraction is a sample preparation technique that uses solvents, heat, and pressure to extract target compounds from solid or semi-solid samples with minimal operator involvement. 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